petametre
See also: pétamètre and peta-metre
English
Noun
petametre (plural petametres)
- (metrology) An SI unit of length equal to 1015 metres. Symbol: Pm
- Alternative forms: Pm, petameter (US)
- Meronyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre